You're going to want to think about the story of the objects. What's less important is what it is. You need to focus on what it means.

The first item… you're going to have to work hard to make it something other than just something that kills you. We've got enough of those. For example, why a trophy? Why not a wood chipper? What's so important about it being a trophy? What's so important about it slowly killing people it touches?

The second item is not explained at all. "It may look normal, but it isn't normal." That describes nearly everything in existence. What kind of unusual activities? What are the two entities? What does "possessing" the chamber mean? What is the "normal" purpose of the chamber?